Final Payoff is a look into the Canadian serial killer Clifford Olson and his crimes and imprisonment.

Clifford Robert Olson Jr. (January 1, 1940 – September 30, 2011)[1] was a Canadian convicted serial killer who confessed to murdering 11 children, aged between 9 and 18, in the early 1980s.

In 1976, Olson was serving a sentence for his crimes as a con artist. He had obtained favourable terms for himself by acting as an informant against a cellmate, even coaxing him into a written confession.